One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,5)(4,6)(7,8)(9,10,16,19)(11,14,22,15)(12,17,23,18)(13,21,24,20)(1,3)(2,5)(4,7)(6,8)(9,11,14,19,16,22,15,10)(12,18,13,21,23,17,24,20)(2,6)(3,7)(12,23)(13,24)(17,18)(20,21) involution — undirected(2,6)(5,8)(9,12,15,24,16,23,14,13)(10,17,11,20,19,18,22,21)(9,13,15,12,16,24,14,23)(10,18,22,20,19,17,11,21)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.